<h4>Tool</h4><table border="0"><tr><td valign="top"><b>Name</b></td><td valign="top">Morphometric Protection Index</td></tr><tr><td valign="top"><b>ID</b></td><td valign="top">7</td></tr><tr><td valign="top"><b>Author</b></td><td valign="top">(c) 2005 by Victor Olaya</td></tr><tr><td valign="top"><b>Specification</b></td><td valign="top">grid</td></tr></table><hr><h4>Description</h4>This algorithm analyses the immediate surrounding of each cell up to an given distance and evaluates how the relief protects it.
It is equivalent to the positive openness described in: Visualizing Topography by Openness: A New Application of Image Processing to Digital Elevation Models, Photogrammetric Engineering and Remote Sensing(68), No. 3, March 2002, pp. 257-266.<hr><h4>Parameters</h4><table border="1" width="100%" valign="top" cellpadding="5" rules="all"><tr><th>Name</th><th>Type</th><th>Identifier</th><th>Description</th><th>Constraints</th></tr>
<tr><th colspan="5">Input</th></tr><tr><td>Elevation </td><td>Grid (input)</td><td>DEM</td><td></td><td></td></tr><tr><th colspan="5">Output</th></tr><tr><td>Protection Index</td><td>Grid (output)</td><td>PROTECTION</td><td></td><td></td></tr><tr><th colspan="5">Options</th></tr><tr><td>Radius</td><td>Floating point</td><td>RADIUS</td><td>The radius in map units</td><td>Minimum: 0.000000
Default: 2000.000000</td></tr></table>